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Diffstat (limited to 'Documentation/devicetree/bindings/leds/backlight/kinetic,ktd253.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/leds/backlight/kinetic,ktd253.yaml | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/leds/backlight/kinetic,ktd253.yaml b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktd253.yaml new file mode 100644 index 000000000..73fa59e62 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktd253.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/backlight/kinetic,ktd253.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Kinetic Technologies KTD253 and KTD259 one-wire backlight + +maintainers: + - Linus Walleij <linus.walleij@linaro.org> + +description: | + The Kinetic Technologies KTD253 and KTD259 are white LED backlights + controlled by a single GPIO line. If you just turn on the backlight + it goes to maximum backlight then you can set the level of backlight + using pulses on the enable wire. This is sometimes referred to as + "expresswire". + +allOf: + - $ref: common.yaml# + +properties: + compatible: + items: + - enum: + - kinetic,ktd253 + - kinetic,ktd259 + + enable-gpios: + description: GPIO to use to enable/disable and dim the backlight. + maxItems: 1 + + default-brightness: true + max-brightness: true + +required: + - compatible + - enable-gpios + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + backlight { + compatible = "kinetic,ktd253"; + enable-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>; + default-brightness = <13>; + }; |